250940 has 12 divisors (see below), whose sum is σ = 527016. Its totient is φ = 100368.

The previous prime is 250919. The next prime is 250949. The reversal of 250940 is 49052.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 12547 = 250940 / (2 + 5 + 0 + 9 + 4 + 0).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250940.

It is not an unprimeable number, because it can be changed into a prime (250949) by changing a digit.

250940 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6254 + ... + 6293.

It is an arithmetic number, because the mean of its divisors is an integer number (43918).

2²⁵⁰⁹⁴⁰ is an apocalyptic number.

250940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250940 is an abundant number, since it is smaller than the sum of its proper divisors (276076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250940 is a wasteful number, since it uses less digits than its factorization.

250940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12556 (or 12554 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 250940 is about 500.9391180573. The cubic root of 250940 is about 63.0749087964.

Adding to 250940 its reverse (49052), we get a palindrome (299992).

The spelling of 250940 in words is "two hundred fifty thousand, nine hundred forty".